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Lexo Automation Powertech Mastiff 400 Swing Gate

Lexo Automation Powertech Mastiff 400 Swing Gate

Regular price $1,249.95
Regular price Sale price $1,249.95
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Mastiff 400 Swing Gate Opener

The LEXO Automation Powertech Mastiff 400 is a durable 24V DC swing gate opener designed for medium-to-heavy residential and semi-rural gates up to 3.5m per leaf or 350kg. With smooth worm-gear drive, die-cast aluminium housing, built-in limit switch and reliable obstacle detection, the Mastiff 400 offers quiet, controlled operation ideal for everyday use. Available as a Single Kit, Double Kit or Arm-Only, it delivers strong performance, reliable automation and long-term durability under Australian outdoor conditions.

What’s Included:

Choose between a Single Kit, Double Kit or Arm Only.

The single and double kits will include:

  • Lexo Automation Powertech Mastiff 400 Arm (single or double)
  • Mounting Hardware and Brackets
  • Manual Release Keys
  • Control Board in Enclosure 
  • 2 x Remotes
  • Installation User Manual

Arm only will not include Control Board in Enclosure or Remotes.   

Key Features:

  • Powerful 24 V DC Motor: Provides smooth and consistent performance with a peak thrust of approximately 3,500 N.
  • Heavy-Duty Design: Suitable for gates up to 3.5 m long or 350 kg per leaf, ideal for medium to large residential gates.
  • Die-Cast Aluminium Housing: Corrosion-resistant body ensures long-lasting durability in harsh weather conditions.
  • Smooth & Quiet Operation: Worm-gear transmission guarantees steady motion with minimal noise.
  • Built-In Obstacle Detection: Automatically stops or reverses on impact to prevent damage and enhance safety.
  • Manual Key Release: Enables manual gate operation during power outages or emergencies.
  • Pedestrian Mode: Partially opens the gate for easy foot or bike access.
  • Built-In Limit Switch: Precise open/close control for accurate positioning and smooth operation.
  • Low-Voltage Safety: 24 V system ensures efficient and safe operation.
  • Easy Installation & Setup: Adjustable brackets and limit settings simplify installation and calibration.

Ideal Applications: 

  • Residential Driveways: Ideal for standard home entrances requiring reliable automation.
  • Semi-Rural Properties: Perfect for mid-sized gates on acreage or farm entrances.
  • Timber or Decorative Gates: Designed to handle added wind load or heavier materials.
  • Shared Entrances & High-Traffic Homes: Engineered for consistent daily use with safety in mind.
  • Replacement or Upgrade Projects: A robust upgrade for older or lighter-duty gate openers.

Technical Specifications: 

Max. Leaf Length 3.5m 
Max. Leaf Weight 350kg
Operation Stroke 350mm
Gear Type Worm Gear
Motor Type 24V DC
Input Power 220 - 240 VAC (50 Hz)
Max. Force 3500N
Absorption 4.2A
Power 144W
Duty Cycle 50%
IP Rating IPX4
Operating Temperature -20C to 50C
Built in Limit Switch Yes
Opening Time Less then 14s
Manual Release Key
Dimensions 844 x 115 x 106mm
Warranty 2 Years Manufacturers Warranty

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Warning icon

This product contains a button or coin cell battery. To prevent possible SERIOUS INJURY or DEATH:

  • Keep new and used batteries out of reach of children at all times.
  • Do not use this product if the battery compartment is damaged or does not close securely.
  • Dispose of used batteries immediately and safely — even flat batteries can cause serious harm.
  • Do not ingest the battery. Chemical burn hazard.
  • If you suspect a battery has been swallowed or inserted, act immediately — severe or fatal injuries can occur within 2 hours.